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Subject :NSO    Class : Class 4

Ananya took a green leaf and then boil it in water. After boiling, she put it in alcohol in a water bath. After some time, she performed iodine test on the leaf. The leaf turns blue black. This shows that

A Chlorophyll is needed for photosynthesis.
B Sunlight is needed for photosynthesis.
C Starch is produced in green leaf during photosynthesis.
D Light is needed for photosynthesis.


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